SoftFinish® electric SL/PH/PZS Screwdriver Set, 6 PieceSoftFinish electric SL PH PZS Screwdriver Set, 6 Piece The Wiha SoftFinish electric slimFix Screwdrivers come with a high quality Chrome vanadium steel blade, through hardened with a black finish. Insulation is moulded directly onto the blade. Individually tested at 10,000 V AC and approved for 1,000 V AC. Patented SoftFinish handle ensures work is kind to hands and muscles. Recommended by doctors and therapists at the German Campaign for Healthier